






🔥 Take control of your comfort — heat smarter, save bigger!
The Honeywell evohome Smart Wi-Fi Thermostat Kit revolutionizes home heating with wireless, room-by-room temperature control across 12 zones. Featuring a vibrant full-color touchscreen and remote app access, it learns your home's heating patterns to optimize comfort and slash energy bills by up to 40%. Compatible with major smart home platforms, this easy-to-install system includes a wireless boiler relay module, making it the ultimate upgrade for modern, efficient living.







| Asin | B01M63VB18 |
| Backlight | Yes |
| Best Sellers Rank | 321,934 in DIY & Tools (See Top 100 in DIY & Tools) 270 in Home Programmable Thermostats |
| Brand Name | Honeywell Home |
| Colour | White |
| Connectivity Protocol | Other |
| Connectivity Technology | Wi-Fi |
| Control Method | App |
| Control Type | App Control |
| Controller Type | Android |
| Customer Reviews | 4.3 4.3 out of 5 stars (165) 4.3 out of 5 stars |
| Display Type | Touch Screen |
| Finish Type | Glossy |
| Global Trade Identification Number | 05025121380997 |
| Included Components | 1 x Wi-Fi thermostat, table stand and boiler module |
| Item Dimensions D X W X H | 2.1D x 10.1W x 2.1H centimetres |
| Item Shape | Rectangular |
| Item Type Name | Smart wireless zoning thermostat |
| Item Weight | 0.24 Kilograms |
| Manufacturer | Honeywell |
| Manufacturer Part Number | THR99C3110 |
| Manufacturer Warranty Description | 18 months. |
| Material Type | tpi |
| Model Name | THR99C3110 |
| Model Number | THR99C3110 |
| Mounting Type | Wall Mount |
| Number Of Batteries | 2 AA batteries required. |
| Number Of Items | 1 |
| Power Source | Battery Powered |
| Product Style | Thermostat + Relay |
| Special Features | Next generation thermostat with zone control |
| Specific Uses For Product | Heating systems, home heating, zone heating control, energy management |
| Temperature Control Type | digital |
| Unit Count | 1.0 gram |
User
A very satisfying heating control device
After much research, I found this to be easily the best smart thermostat on the market and it goes the whole way by controlling individual radiators in addition to the central heating boiler. Every room has the right temperature at the right time.It's been about 3 months and we have not experienced any issues controlling this system remotely. Additionally, though all the controls on the thermostat are not available on the smartphone apps, this is not really detrimental.We bought 8 of the HR924UK radiator thermostats to go with this and the pairing went quite simply by following the instructions. I already had a very basic wireless thermostat which had been installed professionally, so I was able to connect the wireless module (this is separate from the thermostat but comes in the box) myself by following the wiring diagram at Honeywell's website for installers. Note that if you don't already have a wireless thermostat or you have the smallest doubt about connecting the wireless module, get a certified professional to avoid risk to life and property.Once everything is installed, you're on your way - you can name each thermostat around the house and decide what the temperature should be at different times of day in each room (the thermostat allows up to 10-minute precision). The thermostat touchscreen comes with a wizard to make this simple, or you can control the schedule with more control.The HR924 radiator thermostat regulates heat by opening and closing the valve as directed by the programmed schedule. There's a little noise as the motor turns, but after a while, you learn to tune it out. This combined system of the touchscreen thermostats and radiator controllers is very well thought out and includes options like always making a particular room a little warmer or cooler than the measured room temperature and showing which room(s) have caused the central heating boiler to come on. There could be some improvements (the battery life when the thermostat is moved from the base seems short and some features could be made more easy to access) but this has been one of my most satisfying purchases for a while.
User
A versatile product, very competitively priced.
Excellent product at a very competitive price. I have been considering installing this product for a couple of years. Throughout this period, it has remained the most versatile home heating solution I have found. It is being installed during a home renovation, so I cannot comment on how it operates in a real home situation at present.
User
Hardware good, software (especially smartphone software) less so
Device looks OK (no gorilla glass or anti-smear coating you'd find on even your cheapest smart phone, but I guess Honeywell don't make enough of these to justify the cost of such an expensive display). Easy enough to install although during set up its a bit too easy to overwrite earlier zone settings using the setup wizard - but you only do this once before you figure it out! Control protocols work well (valves open and close when they should) and range seems to be as good as promised. User interface looks OK and scheduling setup seem intuitive.The remote app for smart phones is super basic. It should mimic the controls offered by the device itself. It does not. You can see Honeywell is a heating and controls business not a software developer. If your customers value fancy mobile apps install a Nest, not a Honeywell.
User
Excellent Investment in an Efficient System
It was an expensive investment to fit a large house with all the necessary radiator valves, but I am now consistently making savings of more than a third of my gas usage, measured over the first three months of 2022 compared with 2021. I'm writing this on 1 April 2022, a day when everyone's energy prices are rocketing, so I'm doubly pleased with this investment--I originally thought it would take years to repay the cost, but now it's going to be measured in months.Previously I had thermostatic radiator valves everywhere, but only one room thermostat, so edging up the temperature in the one main room for temporary extra comfort meant that heat was likely to be wasted everywhere else in the house--in effect there was only one control zone. With this system, almost every individual room is its own zone, and I can programme them for temperature and timing individually.Although we're using so much less energy, it's become very easy to focus where the heat goes and when. That means, for example, that the the living room can be heated quickly at a time when other zones are less important and programmed for lower temperatures, whilst the bedrooms can be left to their own devices for most of the day but warmed effectively overnight. The house feels more comfortable than before because the system is just so much more responsive.The central unit is easy to use, and the Total Comfort app supplements it by allowing more than one user to make adjustments--so when someone leaves their bedroom/home office for the evening after it's been heated all day, they can save energy by turning off the heat for that zone, maybe just for that evening.I did a totally DIY installation, but I would not necessarily recommend that for the faint-hearted or untrained buyer. Having researched other brands of smart thermostat systems and decided on Honeywell, I bought the kit and experimented with it as a dummy system, not actually controlling any radiators, nor connected to the boiler, until I understood how the programming works and could control a specimen valve at will. Then I gradually added the zone valves (in my case all my existing radiator valves were by Honeywell and the physical fitting was a breeze), and progressively changed the system wiring to use the new programmer instead of the old one (obviously that's the electrically challenging and potentially dangerous part). There was a fair bit of head-scratching along the way, but I'm really pleased with the result.
User
Buy another product!
My advice to anyone considering a Honeywell Home product is simple.... DON'T! I was advised that this is the best system on the market for controlling my heating system and I beg to differ, I would say that it is by far the worst decision I made in 2022. It constantly fails to communicate with the underfloor heating zones, thermostats and radiators, trying to get support from Honeywell (Resideo) is extremely frustrating mostly they just never respond and when they do they are inexperienced and don't know their own products. My advice, keep it simple and stay away from Honeywell and anything to do with Resideo!
User
Brilliant system!
Finally finished installing this system and would like to say that it is brilliant.Total control of everything to do with your heating.The main control panel is easy to use and setup. The iPhone app for is even easier. Works on the home Wi-fi or if your not at home works on mobile data too!I have 11 zones setup at the moment so there is even a spare zone left just in case we extend the house.The only thing I would say is that the installation manual could be slightly clear on some of the instructions, but I would like to add the the Honeywell website is very good so if you are installing one of these systems remember that the website is definitely worth having a look at if something is not clear.Very very happy with my purchase.
User
Great product.
Can take a bit of time to bind, set zones and schedules for the first time for a diy"er. Once you get your head around set up, product works great. Pricey but great great product.
User
WiFi Evohome And Boiler Relay Package
First question I bet you are asking is what is in the box?1 x BDR91A1000 Wireless Relay Box (used to turn your boiler off/on)1 x ATC928G3000 Evohome WiFi Controller With Desk Stand And Mains Power UK / EU Power Adaptor.I have radiators which have Honeywell thermostatic radiator valves and thus fitting HR92UK evohome Wireless Radiator Zoning Kit was very easy (I got 2x4 packs for £372.00).Installing the Android app and setting up an account was easy and I created the heating schedules on the app rather than the device.Before with my Honeywell Lyric T6 Wired Smart Internet Enabled Thermostat - works with Alexa, the boiler went on/off based on the hallway temperature. I now have this area set lower and can control each room individually (except bathroom, as I thought the condensation would get to the controller plus it acts as a bypass).The Lyric is no longer in use with the BDR91 mounted in place of the Lyric boiler controller.I am looking forward to lower gas bills and I hope the system will pay for itself in two years or so (maybe quicker if the price of gas goes up again).I should say the package made absolutely no mention of Alexa support but I see there is an Alexa app to link the systems together but reading reviews you have to be very clever to name your rooms unique so Alexa can understand you.I am just going to stick with the app which gives you full control in or away from home (no option to geo-locate turn on/off your heating in the current app).
User
Qu'il fait bon
Avec ce thermostat en association avec les vannes thermostatiques HR92, c'est la première fois de ma vie que j'ai chaud.Chaque pièce de la maison est chauffée comme planifié. Un vrai bonheur.
User
Si buscas el modelo opentherm este no es tu producto
Ojalá alguien lo hubiese aclarado antes, este modelo lleva el rele sin opentherm. Para mi caso hace falta el rele rr8810. El rele bdr91 no es opentherm. Ojo, que el relé aparte son 100€ más.Todo lo demás funciona perfecto pero tengo que devolver el pack entero y comprar cada cosa por separado
User
Works as expected
Controling 3 floors in the house through central relay unit to turn on the heating as needed. Works as described.
User
Slechte interface, slechte temperatuurmeting, blijft schakelen ondanks bereikte temperatuur
Het product gaat na een week terug.Bij de installatie was ik al niet onder de indruk van de gebruikersinterface. Bij het leggen van de verbinding met de draadloze relaisbox volgt geen duidelijke terugkoppeling van een geslaagde verbinding terwijl de verbinding gewoon al wel tot stand was gebracht. Verder is de bediening van de gebruikersinterface met het touchscreen niet geweldig. En het scherm kan ook niet uit dus je hebt de hele dag het beeld erop staan. Het kan alleen gedimd worden.De kamerertemperatuur die deze thermostaat aangaf in de standaard fabrieksinstelling week twee graden af van de daadwerkelijke temperatuur. Nagemeten met meerdere thermometers en onze vorige thermostaat. Ben een paar dagen bezig geweest de instelling van de interne voeler bij te stellen. Daarover staat niets in de normale gebruikshandleiding maar was wel via internet te vinden. Maar de belangrijkste reden het product terug te sturen is dat deze de ketel blijft inschakelen zelfs als de temperatuur al is bereikt. Hij is ingesteld op een aan/uit ketel, die we ook hebben, en ik heb een programma van 07.30 tot 21.00 20 graden. 's Ochtends schakelt de CV in en wordt het inderdaad 20 graden, maar gedurende de dag, terwijl de thermostaat aangeeft dat het 20 graden is in de woonkamer, wordt toch de CV ingeschakeld. Daar had onze vorige thermostaat (Toon van Eneco) geen last van, maar die is niet draadloos dus vandaar dat de keuze op deze was gevallen. Maar door de vele inschakelingen gebruiken we veel meer gas terwijl dat niet nodig is en dus ga ik deze terugsturen en op zoek naar een andere.
User
Completo e funzionale
Ho acquistato questo sistema da utilizzare su un riscaldamento centralizzato.La centrale è al di sotto delle mie aspettative da nerd ma è assolutamente eccellente rispetto a quello che ho trovato come alternativa sul mercato, dopo parecchie letture e ricerche in merito.Ho scelto questa marca per l'esperienza su questo tipo di prodotto e per l'architettura del servizio che mi è sembrata ottimaleCostruttivamente sembra valido sia per il tipo di materiale che per la reattività dello schermo.Provata per ora con riscaldamenti spenti solo per verificarne il funzionamento, aggiornerò la recensione dopo l'uso realmente operativo.Nella confezione è anche presente il sistema da collegare alla caldaia che non utilizzo perchè avendo il centralizzato uso le testine.Ho avuto un problema con un dispositivo precedentemente inviato che era guasto ed il servizio di assistenza di Honeywell mi è sembrato all'altezza della situazione sia in termini di risposta che di competenza del personale con cui ho parlato.Configurazione molto semplice e veloce.In questa versione il Gateway è INTEGRATO e consente di comunicare con smartphone o altri dispositivi.Si può impostare una mail se il servizio in cloud perde la connessione con il Gateway.è compatibile con IFTTTLe batterie consentono la configurazione sganciandolo dal supporto da tavolo e come tampone in caso di blackout (quando non è connesso alla rete elettrica il wifi viene disattivato).Al momento sono molto soddisfatto dell'acquisto, ovviamente sino al periodo invernale non posso esprimermi sul funzionamento per lo scopo a cui è preposto.AGGIORNAMENO:Dopo due anni di utilizzo sono soddisfatto dell'acquisto, il sistema va tarato e seguito per ottenere buoni risultati e vanno fatte anche valutazioni non sempre scontate tra l'opportunità di variare frequentemente le temperature o lasciare una temperatura costante. In alcune circostanze è necessario avere il termometro esterno per una resa ottimale, ma il problema è comune a qualunque testina.Quello che davvero manca è una parte di reportistica, il sistema non offre nessuna grafico delle temperature rilevate ne degli andamenti e delle volte in cui interviene applicando le funzioni di anticipo, ritardo, previsioni meteo, finestra aperta ecc.. Queste info sarebbero utli per suggerire dei setup migliorativi per esempio e magari potrebbero essere integrate con dati di altri sensori (esempio sensori di presenza, GPS. termometri di altri dispositivi ecc..)in realtà sarebbe possibile registrare queste informazioni con una serie di accorgimenti che però prevedono un pc dedicato sempre acceso in rete e molto tempo da investire.Dopo due anni ritengo quindi di aver fatto un buon acquisto
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